drm/modeset: add helper to unplug all connectors from sysfs
In order to get correct ordering at hot-unplug for userspace,
we need to tear down all the sysfs bits at the correct time.
This adds a helper to allow drivers to remove the sysfs nodes
for all connectors.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index d2d9dc5..7990283 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -540,10 +540,21 @@
}
EXPORT_SYMBOL(drm_connector_cleanup);
+void drm_connector_unplug_all(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+
+ /* taking the mode config mutex ends up in a clash with sysfs */
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ drm_sysfs_connector_remove(connector);
+
+}
+EXPORT_SYMBOL(drm_connector_unplug_all);
+
int drm_encoder_init(struct drm_device *dev,
- struct drm_encoder *encoder,
- const struct drm_encoder_funcs *funcs,
- int encoder_type)
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type)
{
int ret;
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9595c2c..3401761 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -826,6 +826,8 @@
int connector_type);
extern void drm_connector_cleanup(struct drm_connector *connector);
+/* helper to unplug all connectors from sysfs for device */
+extern void drm_connector_unplug_all(struct drm_device *dev);
extern int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,